Gravity is very important to us. It’s impossible to live on Earth without gravity. The gravitational force of the sun keeps the Earth in orbit around it, keeping us far away from the sun and heat. It holds our atmosphere and the air we need to breathe. Gravity is what holds our earth together.
On Earth, gravity varies from place to place. Gravity is slightly stronger in overweight areas than underweight. NASA uses two spacecraft to measure these differences in Earth’s gravitational pull. These spacecraft are part of the Land Reform and Climate Change (GRACE) campaign.
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